CVE-2020-27154

HIGH 8.8CVE-2020-27154 · Published 18/12/2020 · updated 17/06/2026

In short

CVE-2020-27154 is a HIGH (CVSS 8.8) vulnerability affecting businesscti enterprise (mitel).
Chance of exploitation in the next 30 days (EPSS): 1.0%, higher than 63.9% of all vulnerabilities.
Fix: update to 7.0.3, 6.4.11 or later.

Package	Affected versions	Patched versions
businesscti enterprise mitel	`≥ 7.0.0, < 7.0.3< 6.4.11`	`7.0.36.4.11`

Description

The chat window of Mitel BusinessCTI Enterprise (MBC-E) Client for Windows before 6.4.11 and 7.x before 7.0.3 could allow an attacker to gain access to user information by sending arbitrary code, due to improper input validation. A successful exploit could allow an attacker to view the user information and application data.

References

mitel.com/support/security-advisories · Vendor Advisory

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